linux-kernel - Re: [PATCH -next] media: staging: tegra-vde: Mark tegra_vde_runtime_suspend as __maybe

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <e15a688e-934b-82a8-34c5-aac07928fd8f@huawei.com>
Date:   Mon, 3 Aug 2020 21:00:06 +0800
From:   Yuehaibing <yuehaibing@...wei.com>
To:     Dmitry Osipenko <digetx@...il.com>, <mchehab@...nel.org>,
        <gregkh@...uxfoundation.org>, <thierry.reding@...il.com>,
        <jonathanh@...dia.com>, <hverkuil-cisco@...all.nl>
CC:     <linux-media@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
        <devel@...verdev.osuosl.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH -next] media: staging: tegra-vde: Mark
 tegra_vde_runtime_suspend as __maybe_unused

On 2020/8/3 20:51, Dmitry Osipenko wrote:
> 03.08.2020 14:59, YueHaibing пишет:
>> If CONFIG_PM is not set, gcc warns:
>>
>> drivers/staging/media/tegra-vde/vde.c:916:12:
>>  warning: 'tegra_vde_runtime_suspend' defined but not used [-Wunused-function]
>>
>> Make it __maybe_unused to fix this.
>>
>> Signed-off-by: YueHaibing <yuehaibing@...wei.com>
>> ---
>>  drivers/staging/media/tegra-vde/vde.c | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/staging/media/tegra-vde/vde.c b/drivers/staging/media/tegra-vde/vde.c
>> index a3c24d96d5b9..2d043d518eef 100644
>> --- a/drivers/staging/media/tegra-vde/vde.c
>> +++ b/drivers/staging/media/tegra-vde/vde.c
>> @@ -913,7 +913,7 @@ static irqreturn_t tegra_vde_isr(int irq, void *data)
>>  	return IRQ_HANDLED;
>>  }
>>  
>> -static int tegra_vde_runtime_suspend(struct device *dev)
>> +static __maybe_unused int tegra_vde_runtime_suspend(struct device *dev)
>>  {
>>  	struct tegra_vde *vde = dev_get_drvdata(dev);
>>  	int err;
>>
> 
> Hello Yue,
> 
> Shouldn't the tegra_vde_runtime_resume() be marked as well?

No, tegra_vde_runtime_resume() always be called by tegra_vde_shutdown().

> 
> .
>